A319796 - cp's OEIS frontend

A319796 Even numbers that have middle divisors, where "middle divisor" means a divisor in the half-open interval [sqrt(n/2), sqrt(n*2)).

n	a(n)
1	2
2	4
3	6
4	8
5	12
6	16
7	18
8	20
9	24
10	28
11	30
12	32
13	36
14	40
15	42
16	48
17	50
18	54
19	56
20	60
21	64
22	66
23	70
24	72
25	80
26	84
27	88
28	90
29	96
30	98
31	100
32	104
33	108
34	110
35	112
36	120
37	126
38	128
39	130
40	132
41	140
42	144
43	150
44	154
45	156
46	160
47	162
48	168
49	170
50	176
51	180
52	182
53	190
54	192
55	196
56	198
57	200
58	204
59	208
60	210
61	216
62	220
63	224
64	228
65	234
66	238
67	240
68	242
69	252
70	256

[2, 4, 6, 8, 12, 16, 18, 20, 24, 28, 30, 32, 36, 40, 42, 48, 50, 54, 56, 60, 64, 66, 70, 72, 80, 84, 88, 90, 96, 98, 100, 104, 108, 110, 112, 120, 126, 128, 130, 132, 140, 144, 150, 154, 156, 160, 162, 168, 170, 176, 180, 182, 190, 192, 196, 198, 200, 204, 208, 210, 216, 220, 224, 228, 234, 238, 240, 242, 252, 256]

cp's OEIS Frontend

A319796 Even numbers that have middle divisors, where "middle divisor" means a divisor in the half-open interval [sqrt(n/2), sqrt(n*2)).

Table of values

List of values

n	a(n)
1	2
2	4
3	6
4	8
5	12
6	16
7	18
8	20
9	24
10	28
11	30
12	32
13	36
14	40
15	42
16	48
17	50
18	54
19	56
20	60
21	64
22	66
23	70
24	72
25	80
26	84
27	88
28	90
29	96
30	98
31	100
32	104
33	108
34	110
35	112
36	120
37	126
38	128
39	130
40	132
41	140
42	144
43	150
44	154
45	156
46	160
47	162
48	168
49	170
50	176
51	180
52	182
53	190
54	192
55	196
56	198
57	200
58	204
59	208
60	210
61	216
62	220
63	224
64	228
65	234
66	238
67	240
68	242
69	252
70	256

n	a(n)
1	2
2	4
3	6
4	8
5	12
6	16
7	18
8	20
9	24
10	28
11	30
12	32
13	36
14	40
15	42
16	48
17	50
18	54
19	56
20	60
21	64
22	66
23	70
24	72
25	80
26	84
27	88
28	90
29	96
30	98
31	100
32	104
33	108
34	110
35	112
36	120
37	126
38	128
39	130
40	132
41	140
42	144
43	150
44	154
45	156
46	160
47	162
48	168
49	170
50	176
51	180
52	182
53	190
54	192
55	196
56	198
57	200
58	204
59	208
60	210
61	216
62	220
63	224
64	228
65	234
66	238
67	240
68	242
69	252
70	256

n	a(n)
1	2
2	4
3	6
4	8
5	12
6	16
7	18
8	20
9	24
10	28
11	30
12	32
13	36
14	40
15	42
16	48
17	50
18	54
19	56
20	60
21	64
22	66
23	70
24	72
25	80
26	84
27	88
28	90
29	96
30	98
31	100
32	104
33	108
34	110
35	112
36	120
37	126
38	128
39	130
40	132
41	140
42	144
43	150
44	154
45	156
46	160
47	162
48	168
49	170
50	176
51	180
52	182
53	190
54	192
55	196
56	198
57	200
58	204
59	208
60	210
61	216
62	220
63	224
64	228
65	234
66	238
67	240
68	242
69	252
70	256